body {
    font-family: sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    text-align: center;
    padding: 40px 20px;
    background-color: #fff;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.profile-pic {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #1877f2;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

h1 {
    margin: 20px 0 10px;
    font-size: 2.5em;
    color: #1d2129;
}

h2 {
    margin: 0;
    font-size: 1.5em;
    font-weight: 400;
    color: #606770;
}

main {
    max-width: 800px;
    width: 100%;
    padding: 20px;
}

.bio, .links {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h3 {
    margin-top: 0;
    font-size: 1.2em;
    color: #1d2129;
    border-bottom: 1px solid #e9ebee;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: #333;
    font-size: 2em;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #1877f2;
}